11110001605 has 16 divisors (see below), whose sum is σ = 13413173760. Its totient is φ = 8834015808.

The previous prime is 11110001569. The next prime is 11110001629. The reversal of 11110001605 is 50610001111.

11110001605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11110001605 - 2¹³ = 11109993413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 720466 + ... + 735724.

It is an arithmetic number, because the mean of its divisors is an integer number (838323360).

Almost surely, 2^11110001605 is an apocalyptic number.

It is an amenable number.

11110001605 is a deficient number, since it is larger than the sum of its proper divisors (2303172155).

11110001605 is a wasteful number, since it uses less digits than its factorization.

11110001605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16140.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 11110001605 its reverse (50610001111), we get a palindrome (61720002716).

The spelling of 11110001605 in words is "eleven billion, one hundred ten million, one thousand, six hundred five".